Metal form construction



May 12, 1925. 1,537,229

H. M. GERSMAN METAL FORM CONSTRUCTION Filed Aug. 4, 1924 2 Sheets-Sheet 1 May 12, 1925.

H. M. GERSMAN METAL FORM CONSTRUCTION Filed Au. 4 1924. 2 Sluts-Sheet 2 i li z Patented May 12, 1925,

HARVEY MJGERSMAN, OF CHICAGO,

. CHICAGO, ILLINOIS,

rumors, ASSIGNOB A oonronarron OF DELAWARE.

M TAL roam oonsrnuo'rron.

Application filed August-4, 1924. Serial No'. 729,991. 7 1 1 '10 all whom it may concern:

Be it known that I, HARVEY M. GERSMAN,

a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in a Metal Form Construction, of which the following is aspecification.

My invention relates to concrete form construction and particularly to an adaptation of and improvement on the construction illustrated in tions, Serial Nos. 1923, and 722,721, filed An object of co-pending applica- 4:61, filed Jan. 13, June v27, 1924:,

the present invention is to utilize metallic'structural members throughout and to provide means for .partof the structural work for removing a reuse before the period of time ordinarily allowed has elapsed for removal for the concrete.

of the entire support It is frequently possible to remove the soflit support after days, conditional upon port. by

at intervals along the line ofthe soiiits.

the desired result in a order to accomplish simple manner I approximately three the continued supthe stringers and possible shoring.

provide stringers in alternate depressed and elevated relation and extend the soiiits between the sides of the elevated stringers, supporting the soflits at an intermediate point on the Incidentally the soflarge and small s ecdepressed stringer. lits are composed of tions capable of telescopic relation,

at a point abovethe de- When. it is desired to re-' the soilits and pans for reuse, the dc displaced by sectional s'ol'tits and pans tions overlapping pressed stringer.

pressed stringer is its shores and the are dropped.

Thereafter,

top surface of the the secren'loval of if desired, the

shores may be replaced and blocked up to provide intermediate supports between the This releases for reuse half of the stringers and all the soflits and pans except the pan'sections immediately elevated stringers.

above the elevated stringers.

Theinventi'on will be more readily understood by reference to the accompanying drawings, wherein,

Fig 1 l3 a p n' iew of steel aim Sy lation horizontally. shores are cap plates 13.

stringers mg ntended that the first mentioned stringstringers with The stirrup 'top' surface thereof. The soliits are,

tem constructed inaccordance with my invention, and,

Fig. 2 is a sectional view on the line 22 of Fig. 1. j I p In thedrawings it will be seen that I pro vide shores 10, 11, and intermediate shores 12, the tops of which are instaggered re- On the tops of the On the cap plates are placed the stringers consisting of large sections 15, and smaller sections 16, capable of telescopic relation from end to end thereo f. By means of this construction the stringers may be accommodated to any desired spacing of shores.-

The stringers which are rested on the shores 10, 11, are elevated relative to the which rest on the shores 12, itbeers will remain in place during the whole period of the curing of the concrete.

The soflits are likewise composed oftwo T0 KALMAN STEEL (10., OF

sections 17 18, the latter beingca-pable of I being received'within the former. Suitable means such as the stirrup 19, are provided for supporting the ends of the soiiits in abutting relation to the sides of the the top surfaces of the stringers and soflits in the same plane; may consist of a generally. Z-shaped member, the top flange 20 of which engages with the top surface of the elevated stringers. V

At a point intermediate the ends of the sofiit and beneath the overlapped ends of the two' sections thereof, I place the depressed stringer, the sofiit resting on the by reason of their telescopic construction, par=- 'ticularly adapted for this character of work readily accommodate I tions22 being employed at'a pointabove the stringers. A conventional form of pan is shown, the sections resting at their lower margins onthe side flanges of the soilits, the short sections resting upon th ops of the stringers. Means for supporting the form pans at an adjusted height may be provided if desired.

It being desired to remove the pans and s-oftits after two or three days following the pouring of the concrete, the shore 12 is removed, thus permitting the depressed stringer to be lowered. The sotlit elements 17, 18, and the pans supported thereby may next be readily removed by sliding the soflit members longitudinally until their ends are disengaged from the stirrups. Thereafter shores may be placed beneath the concrete if desired.

By this means the bulk of the steel may be utilized for subsequent operations, thus materially reducing the quantity of steel required for any one job.

Obviously the form of some or all of the parts may be varied without departure from the spirit of my invention. The scope of the invention is indicated in the appended claims.

I claim:

1. In a concrete form system, the combination of stringers and supports therefor, the top surface of alternate stringers being in different horizontal planes, and soliits extending transversely between stringers, said sotfits at their ends abutting the sides of stringers and at an intermediate point resting uponthe top surfaces of an intermediate stringer.

2. In a form system, the combination of a plurality of stringers, the top surface of alternate stringers being located in a plane beneath the top surfaces of adjacent stringers, sotlits extending transversely of the stringers with their ends abutting the sides of two elevated stringers and with their middle portions resting upon the top surface of a depressed stringer, said soflits being composed of a plurality of telescopic channel sections.

3. In a form system, the combination of stringers, sofiits extending between two elevated stringers and resting upon an intermediate depressed stringer, said soiiits being composed ofteleseopic channel sections.

4. In a form system, the combination of stringers, sottits extending between two ele vated stringers and resting upon an intermediate depressed stringer, said sol'lits being composed of telescopic channel sections, and means for supporting the ends of the soiiits against the sides of the elevated stringers.

5. In a form system, the combination of stringers, the top surfaces of alternate stringers being in horizontally staggered relation, soflits composed of telescopic'channel sections the ends of which abut the sides of. twoelevated stringers, and an intermediate portion of which rests upon a depressed stringer.

"relations,

6. In a form system, the combination of stringers in horizontally staggered relation, channel-shaped soiiit units, each unit consisting of a large and small section capable of nesting relation from end to end thereof, means for supporting the ends of said solfit against the sides of two elevated stringers, the inte'mediate portion of said sofiit resting on a depressed stringer.

7. In a form system, the combination of stringers arranged in alternate, elevated and depressed relation, a channel-shaped sotlit the ends of which abut the sides of two elevated stringers, and the intermediate point of which rests upon the top surface of a depressed stringer, means for supporting the ends of the soiiits from the top of the elevated stringers, with the said ends abutting the sides of said stringers.

8. In a form system, the combination of stringers arranged in alternate, elevated and depressed relation, a channel-shaped sofit the ends of which abut the sides of two elevated stringers, and the intermediate point of which rests upon the top surface of a depressed stringer, means for supporting the ends of the soflits from the top of the elevated stringers, with the said ends abutting the sides of said stringers, said softits being composed of two telescopic sections.

' In a form system, the combination of alternate high and low shores, channelshaped telescopic stringers rested on said shores whereby the top surfaces of alternate stringers are in elevated and depressed relation, and channel-shaped soflits between adjacent elevated stringers and resting at their middle points on a depressed stringer.

10. In a form system, the combination of alternate high and low shores, channelsh-aped telescopic stringers rested on said shores whereby the top surfaces of alternate stringers are in elevated and depressed relation, and channel-shaped telescopic soffits extending between the sides of adjacent elevated stringers with their top surfaces flush with the top surfaces of said elevated stringers and at an intermediate point rested on the top surface of a depressed stringer.

11. In. a. steel form system, the comli ination of stringer. elements consisting of alternate large and small channels, the large channels being constructed to receive a part or all of the smaller sections in telescopic shores underlying a telescopcd portion of said stringers, sotlits extending between stringers, means for supporting the ends of the soflits on the stringers with the said ends abutting the sides of the stringers and with the top surfaces of the stringers and soil-its in the same plane.

12. In a steel form system, the combination of stringer elements consisting of alternate large and small channels, the large lll) and sofiits in the same plane, said soflits being composed of two telescopic sections, 10 and means for supporting said soffits at a point intermediate their ends.

Signed at Chicago, 111., this 28th day of July, 1924.

' HARVEY M. eERsMAN; 

